I've left my dimmers sat next to the Hubitat hub, and next to repeaters, and they still loose the connection within a day.
Picos are not a realistic option for those of us not in the US. Hue dimmers are the cheapest and most widely available here. And I have a lot of them now, as the Hue starter bundle deals that include them have been the cheapest way to buy Hue bulbs recently. I also have about 8 Hue hubs to Ebay as a result.